The aptly named Blinx cans have LEDs on each earpiece – and on a music-controlling in-cable medallion - that flash in time to the output signal of any audio device connected through the pair's 3.5mm jack.

So, listen to some fast-paced trance music and your headphones will flash extremely quickly. But stick on some Katie Melua and the lights will slow down.

According to manufacturer Andrea Electronics, the earphones already have their own patent and the technology, officially called AudioOptic, creates “a brilliant visual of the sonic activity” that enable you to “see the music”.

Blinx headphones cost $25 (£17/€20) and are available online, with several different LED colours to chose from – including blue, green, pink and orange. ®